The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2008
Filed:
Dec. 14, 2004
Yoichiro Tabata, Tokyo, JP;
Yujiro Okihara, Tokyo, JP;
Masayuki Ishikawa, Tokyo, JP;
Tetsuya Saitsu, Tokyo, JP;
Hatsuo Yotsumoto, Tokyo, JP;
Yoichiro Tabata, Tokyo, JP;
Yujiro Okihara, Tokyo, JP;
Masayuki Ishikawa, Tokyo, JP;
Tetsuya Saitsu, Tokyo, JP;
Hatsuo Yotsumoto, Tokyo, JP;
Abstract
An ozone generating system and an ozone generating method producing ozone at a high concentration and operating at high efficiency, in which a raw material gas with no nitrogen added and mainly containing oxygen is used. The amount of generation of NOby-product is null. A raw material gas not containing nitrogen and mainly containing oxygen is supplied to an ozone generator, an AC voltage is applied to produce discharge light having a wavelength of 428 nm to 620 nm, a catalytic material containing a photocatalytic material with a band gap energy of 2.0 eV to 2.9 eV is provided on an electrode or a dielectric in a discharge region, gas pressure is kept at 0.1 MPa to 0.4 MPa, and ozone is generated.